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Добірка наукової літератури з теми "Cooling system for a traction motor"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Cooling system for a traction motor"

Yıldırım, Doğan, Mehmet Hakan Akşit, Işık Çadırcı, and Muammer Ermiş. "All-SiC Traction Converter for Light Rail Transportation Systems: Design Methodology and Development of 165 kVA Prototype." Electronics 11, no. 9 (April 29, 2022): 1438. http://dx.doi.org/10.3390/electronics11091438.

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Анотація:

The design and development of a high-performance 165 kVA, 750 V DC all-silicon carbide (SiC) traction converter for new generation light rail transportation systems (LRTSs) are described. In the design of the traction motor drive, the efficiency of the overall system is maximized and the line current harmonic content of the traction motor is minimized. A complete mathematical model of the physical system is derived to carry out real-time simulations and proper control of the LRTS on a real rail track. The electrical and thermal performances of traction-type SiC power MOSFET modules are compared with those of alternative hybrid and Si-IGBT modules for various switching frequencies. The implementation of the developed system is also described. The performance of the resulting system is verified experimentally on a full-scale physical simulator as well as for various track conditions. Very promising results for the next generation railway traction motor drives have been obtained in terms of performance criteria, such as very high efficiency, low harmonic distortion of the motor line current, low cooling requirement, relatively high switching frequency, and hence, superior controller performance. The effects of the SiC power MOSFET operation on the insulation of the available traction motors are also examined experimentally. This paper is accompanied by a video demonstrating the experimental work.

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Pugachev, Alexander, and Galina Fedyaeva. "Definition of the Transfer Function Parameters of Asynchronous Motor as an Object of Temperature Control." Applied Mechanics and Materials 698 (December 2014): 124–30. http://dx.doi.org/10.4028/www.scientific.net/amm.698.124.

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The analysis and systematization of research methods of thermal state of induction motors including traction ones is done. It is shown that for each type of motor it is necessary to develop its own mathematical model of thermal processes, and its verification should be carried out only on the basis of experimental investigations. The structure and operating principles of the complex developed physical model of the traction electric drive with induction motors is represented. The motors have a cooling system with variable-speed electric fan and subsystem of measurement and recording of monitored parameters. The method and the results of experimental study of the processes of heating and cooling of the induction motor are illustrated. Transfer functions and approximation curves of transients are proposed, their parameters are defined.

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Dragomirov, M. S., S. A. Zhuravlyov, and A. M. Zaitsev. "Analysis of cooling systems efficiency of traction induction motors and motor-generators." Vestnik IGEU, no. 1 (2016): 39–43. http://dx.doi.org/10.17588/2072-2672.2016.1.039-043.

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Kosmodamianskiy, Andrey, Alexander Pugachev, and Nikolay Strekalov. "Control system of temperature of locomotives traction frequency converters." MATEC Web of Conferences 341 (2021): 00061. http://dx.doi.org/10.1051/matecconf/202134100061.

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Анотація:

The features of the control systems of temperature of the traction frequency converters consisted of rectifier, capacitor and voltage source inverter for traction rolling stock are discussed. The induction motor is considered as a load for traction frequency converter. The dependence of the number of thermal cycles from semiconductor junction temperature fluctuations before the failure of the semiconductor device are shown. The topology and operation principle of automatic temperature control system of voltage source inverter semiconductor devices of traction frequency converter are developed and described. The system is based on air forced cooling with the use of fan or blower as an executive regulation device. The main feature of the proposed system is the additional reference of switching frequency that allows to reduce the semiconductor temperature fluctuations. The elements of switching frequency control loop are chosen and evaluated, the recommendations on practical implementations are given. Simulation of automatic temperature control system in Matlab with both references of semiconductor junction temperature and its fluctuation was carried out with all essential nonlinearities of induction motors and semiconductor devices taken into account. Results of simulation are included and discussed.

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Бондаренко, Денис, and Denis Bondarenko. "Complete systems for study of automatic cooling systems and asynchronous traction motors." Bulletin of Bryansk state technical university 2015, no. 2 (June 30, 2015): 22–25. http://dx.doi.org/10.12737/22852.

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Анотація:

A comprehensive system for the study of automatic temperature control system, which allows reducing the level of alternating thermomechanical loads on the windings of asynchronous trac-tion motor, increasing their reliability and durability.

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Пугачев, Александр, Aleksandr Pugachev, Денис Бондаренко, and Denis Bondarenko. "Results of the experimental investigationof thermal processes in induction motor." Bulletin of Bryansk state technical university 2015, no. 3 (September 30, 2015): 77–82. http://dx.doi.org/10.12737/23012.

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Анотація:

The adequacy of researches of characteristics of the traction electric drives with an induction motors by means of scaled physical models is proved by application of two induction motors, 380 and 14 kW. The system of data acquisition and sensors applied to it is described. The technique and results of experimental investigation of thermal processes of heating and cooling in the 14 kW induction motor fed by frequency converter with scalar control and IR-compensation under the low values of the stator current frequency and rotor speed are presented. The rotor bars of the induction motor are determined to be most stressed by overheating under the stator current frequency closed to null, the stator winding becomes the most overheated unit of the induction motor under higher values of the stator current frequency.

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Gundabattini, Edison, Arkadiusz Mystkowski, Adam Idzkowski, Raja Singh R., and Darius Gnanaraj Solomon. "Thermal Mapping of a High-Speed Electric Motor Used for Traction Applications and Analysis of Various Cooling Methods—A Review." Energies 14, no. 5 (March 8, 2021): 1472. http://dx.doi.org/10.3390/en14051472.

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This paper gives a comprehensive review of advanced cooling schemes and their applications to the permanent magnet synchronous motors (PMSMs), as well as investigating the electrical motor’s topologies its thermal design issues, materials and performances. Particularly, the electromagnetic and electric performances, machine sizing, together with the structural design, are given. In addition, the work addresses the motor’s material design and properties along with its insulation performance, which is the main goal of optimization. Mainly, thermal mapping with analysis is provided according to the different cooling methods, including air-cooling, water-cooling, oil-cooling, heat-pipe-cooling, potting silicon gelatin cooling, and as well as cooling strategies for tubes and microchannels. The most common special features and demands of the PMSMs are described in the appearance of the motor’s failures caused by uncontrolled temperature rise. In addition, heat sources and energy losses, including copper loss, core loss versus motor speed, and output power, are analyzed. The review of the proposed cooling methods that will achieve the required heat transfer of the PMSM is presented with numerical simulations and measurements data. A review of numerical methods and results, including the finite element methods (FEM), such as the Ansys CFD software, to obtain a high-accuracy thermal mapping model of the PMSM system is given. The revived methods and design requirements due to PMSM temperature profile and cooling flow at different rotor speeds and torque loads are investigated. Finally, the motor design recommendations, including the newly developed cooling solutions, which enable it to effectively redistribute the temperature and heat transfer, increasing the efficiency of the PMSM machine, are laid out.

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Пугачев, Александр, Aleksandr Pugachev, Владимир Воробьев, Vladimir Vorobev, Николай Стрекалов, and Nikolay Strekalov. "TEMPERATURE CONTROL OF POWER SEMICONDUCTOR DEVICES OF TRACTION CONVERTER." Bulletin of Bryansk state technical university 2017, no. 1 (March 31, 2017): 200–206. http://dx.doi.org/10.12737/24914.

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Анотація:

The functional and structural circuits of an au-tomatic system for temperature control of power devices of a traction semiconductor converter of frequency are developed. The peculiarities of power devices as an object of temperature control are considered, an equivalent circuit of thermal processes substitution in semiconductor keys is offered, a comparative assessment of capacity of power loss in two- and three-level inverters of voltage is carried out. The dynamic properties of an electro-drive of a cooling fan with an asynchronous motor with a system of scalar control are analyzed. The recommendations on choice and computation of temperature control are developed.

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Biliński, Janusz. "The latest generation drive for electric buses powered by SiC technology for high energy efficiency." MATEC Web of Conferences 180 (2018): 02012. http://dx.doi.org/10.1051/matecconf/201818002012.

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High energy efficiency and increasing the working frequency of the converter will make it possible to minimize the size of the cooling system and reduce energy consumption. The use of the SiC technology in propulsion drives increases the efficiency of the converter by 1÷1.5%. Simultaneously, higher working frequency reduces losses in the traction motor, significantly lowering the cost of the energy consumed by the vehicle. Auxiliary converters using the SiC technology are a new quality. The reduction of weight and size is very significant (ca. 40÷50%). Higher switching frequency reduces the size of magnetic components (ca. 80%), and higher converter efficiency minimizes the size of the cooling system. The overall efficiency of the converter is extremely high (94÷96%). This paper presents comparison of Si and SiC parameters which are important for modern EV solutions. Paper presents also parameters of SiC traction inverter and auxiliary converter, designed and manufactured as state-of-the-art product for modern electric bus.

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А. Aleksahin, A., A. V Panchu, L. A. Parkhomenko, and H. V. Bilovol. "Heat Transfer in the Ducts of the Cooling Systems of Traction Motors." International Journal of Engineering & Technology 7, no. 4.3 (September 15, 2018): 315. http://dx.doi.org/10.14419/ijet.v7i4.3.19824.

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Requirements for increasing thermal efficiency heat exchangers, which lead to energy saving, material and reduction cost, and as a result of reducing the impact on the environment, led to the development and use of various methods of increasing heat transfer. These methods are called intensification of heat transfer processes. Intensification of heat and mass transfer processes is of great importance for making progress in improving the existing and creation of new energy and heat-exchange equipment. Among the ways of intensifying heat transfer, the swirling of flows of working media is one of the simplest and most common methods and is widely used in energy-intensive channels of nuclear power plants, heat exchangers, aeronautical and rocket and space equipment, chemical industry and other technical devices. We have proposed formulas to determine the cooling air velocity necessary to ensure the required temperature condition of the traction motor assemblies. Decrease in the power of fans in the cooling system using the artificial heat transfer intensification in the ducts was estimated based on the generalization of the results of calculations.

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Більше джерел

Дисертації з теми "Cooling system for a traction motor"

Петренко, Олександр Миколайович. "Наукові основи вибору оптимальних параметрів та режимів роботи систем охолодження асинхронних тягових двигунів електротранспорту". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/35301.

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Анотація:

Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.22.09 "Електротранспорт" - Національний технічний університет "Харківський політехнічний інститут" МОН України, Харків, 2018. Дисертація присвячена створенню наукових основ щодо вибору оптимальних параметрів та режимів роботи систем охолодження асинхронних тягових двигунів електротранспорту. Розроблений алгоритм рішення рівняння Гамільтона-Якобі-Беллмана для задачі руху електрорухомого складу на ділянці шляху із заданим профілем і графіком руху, що дозволяє створити експертну систему управління рухом. Особливостями цього алгоритму є застосування штрафних функцій для опису обмежень, що накладаються графіком руху: досягнення потягом кінцевого пункту за заданий час руху, обмеження швидкості на ділянках шляху, а також відсутність простоїв потягу в процесі руху. Єдиний підхід штрафних функцій застосований також для введення обмежень по зчепленню. Такий підхід дозволяє значно понизити витрати розрахункового часу і спростити процедури розрахунку витрат енергії. Створена математична модель для визначення ефективності тягового приводу. Модель включає в себе визначення основних втрат у асинхронного тягового двигуна з урахуванням насичення магнітної системи, що визначається за результатами вирішення рекурентного нелінійного рівняння. Також у моделі враховані втрати від вищих гармонік напруги в міді та сталі, а також механічні та додаткові втрати. В розробленій моделі враховуються статичні та динамічні втрати у IGBT транзисторах та діодах напівпровідникового перетворювача. Розроблено метод оптимізації параметрів та режимів роботи систем охолодження асинхронних тягових двигунів електрорухомого складу, якій складається з наступних основних етапів: визначення оптимальних режимів роботи тягового приводу на основі запропонованого виразу ефективності тягового приводу; визначення оптимальних режимів руху електрорухомого складу за критерієм мінімуму витрат; вирішення тягової задачі руху на ділянці колії с заданим графіком руху та профілем колії, а також визначенням залежності зміни втрат в елементах тягового двигуна за часом; вибору параметрів та режимів роботи систем охолодження тягових двигунів, які обумовлюють ефективність системи охолодження та вентиляції електрорухомого складу; вирішення задачі умовної мінімізації системи охолодження тягового двигуна за модернізованим критерієм економічної ефективності на основі методу Вейля за узагальненим золотим перетином та задачі аналізу системи вентиляції і охолодження тягових двигунів, яка створена на базі математичної моделі теплових режимів двигуна за узагальненою еквівалентною тепловою схемою.
Thesis for the degree of Doctor of Engineering in specialty 05.22.09 "Electric transport " - National Technical University "Kharkiv Polytechnic Institute" MES of Ukraine, Kharkov, 2018. The thesis is devoted to the creation of scientific foundations for the selection of optimal parameters and operating modes for cooling systems for asynchronous traction motors of electric transport. An algorithm for solving the Hamilton-Jacobi-Bellman equation for the problem of the motion of an electric stock on a section of a track with a given profile and a traffic schedule is developed. That makes it possible to create an expert control system for motion. Features of this algorithm is the use of penalty functions to describe the restrictions imposed by the traffic schedule: the train reaches the destination point for a given driving time, the speed limit on the sections of the track, and the absence of train idle time during the movement. A single approach to penalty functions is also applied to introduce constraints on the adhesion. This approach allows to reduce significantly the costs of the estimated time and to simplify the procedures for calculating energy costs. A mathematical model is created to determine the efficiency of the traction drive. The model includes the determination of the main losses in an asynchronous traction motor, taking into account the saturation of the magnetic system, which is determined by the results of solving a recurrent nonlinear equation. Also, the model takes into account losses from higher harmonic stresses in copper and steel, mechanical and additional losses. The developed model takes into account static and dynamic losses in IGBT transistors and diodes of a semiconductor converter. A method for optimizing the parameters and operating modes of cooling systems for asynchronous traction motors of the electric stock is developed. It consists of the following main stages: determination of the optimum mode of the traction drive operation on the basis of the proposed expression of its efficiency; determination of optimum modes of movement of the electric stock by the criterion of minimum costs; solution of the traction problem of motion on a section of the track with a specified traffic schedule and the track profile, as well as the determination of the dependence of the change in losses in the elements of asynchronous traction engines in time; choice of parameters and operation modes of cooling systems for asynchronous traction motors, which determine the efficiency of the cooling and ventilation system of the electric stock; solution of the problem of relative minimization of the cooling system for asynchronous traction motors with a modernized criterion of economic efficiency based on the Weil method on the generalized golden section and the problem of analyzing the ventilation and cooling system of traction motors, which is based on the mathematical model of thermal motor conditions by the generalized equivalent thermal scheme.

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Cornwell, William Lincoln. "Switching Frequency Effects on Traction Drive System Efficiency." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34983.

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Анотація:

Energy demands are steadily increasing as the world's population continues to grow. Automobiles are primary transportation means in a large portion of the world. The combination of fuel consumption by automobiles along with the shrinking fossil fuel reserves makes the development of new more energy efficient technologies crucial. Electric vehicle technologies have been studied and are still being studied today as a means of improving fuel efficiency. To that end, this work studies the effect of switching frequency on the efficiency of a hybrid electric vehicle traction drive, which contains both an internal combustion engine as well as electric motor. Therefore improving the efficiency of the electric motor and its drive will help improve the viability of alternative vehicle technologies. Automobiles spend the majority of their operational time in the lower speed, lower torque region. This work focuses on efficiency improvements in that region. To estimate the efficiency trend, the system is modeled and then tested both electrically and thermally. The efficiency is shown to increase at lower switching frequencies. The experimental results show that there are some exceptions, but the basic trend is the same.
Master of Science

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Zhao, Yunshi. "Low adhesion detection and identification in a railway vehicle system using traction motor behaviour." Thesis, University of Huddersfield, 2013. http://eprints.hud.ac.uk/id/eprint/23541/.

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It is important to monitor the wheel-rail friction coefficient in railway vehicles to improve their traction and braking performance as well as to reduce the number of incidents caused by low friction. Model based fault detection and identification (FDI) methods, especially state observers have been commonly used in previous research to monitor the wheel-rail friction. However, the previous methods cannot provide an accurate value of the friction coefficient and few of them have been validated using experiments. A Kalman filter based estimator is proposed in this research project. The developed estimator uses signals from the traction motor and provides a new and more efficient approach to monitoring the condition of the wheel-rail contact condition. A 1/5 scaled test rig has been built to evaluate the developed method. This rig comprises 2 axle-hung induction motors driving both the wheelsets of the bogie through 2 pairs of spur gears. 2 DC generators are used to provide traction load to the rollers through timing pulleys. The motors are independently controlled by 2 inverters. Motor parameters such as voltage, current and speed are measured by the inverters. The speed of the wheel and roller and the output of the DC generator are measured by incremental encoders and Hall-effect current clamps. A LabVIEW code has been designed to process all the collected data and send control commands to the inverters. The communication between the PC and the inverters are realized using the Profibus (Process Field Bus) and the OPC (Object Linking and Embedding (OLE) for Process Control) protocol. 3 different estimators were first developed using computer simulations. Kalman filter and its two nonlinear developments: extended Kalman filter (EKF) and unscented Kalman filter (UKF) have been used in these 3 methods. The results show that the UKF based estimator can provide the best performance in this case. The requirement for measuring the roller speed and the traction load are also studied using the UKF. The results show that it is essential to measure the roller speed but the absence of the traction load measurement does not have significant impact on the estimation accuracy. A re-adhesion control algorithm, which reduces excessive creepage between the wheel and rail, is developed based on the UKF estimator. Accurate monitoring of the friction coefficient helps the traction motor work at its optimum point. As the largest creep force is generated, the braking and accelerating time and distance can be reduced to their minimum values. This controller can also avoid excessive creepage and hence potentially reduce the wear of the wheel and rail. The UKF based estimator development has been evaluated by experiments conducted on the roller rig. Three different friction conditions were tested: base condition without contamination, water contamination and oil contamination. The traction load was varied to cover a large range of creepage. The importance of measuring the roller speed and the traction load was also studied. The UKF based estimator was shown to provide reliable estimation in most of the tested conditions. The experiments also confirm that it is not necessary to measure the traction load and give good agreement with the simulation results. With both the simulation and experiment work, the UKF based estimator has shown its capability of monitoring the wheel-rail friction coefficient.

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Demir, Asli. "Design of motor controller water cooling system for a Formula SAE electric racecar." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123264.

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Анотація:

Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (page 39).
This thesis explores the design of a water cooled cold plate system for motor controller used in an FSAE Electric racecar. Models for pressure drop and rate of heat transfer along with the constuction of Computational Fluid Dynamics (CFD) simulations are presented to predict the pressure drop and heat transfer rate. The goal is to provide a framework to design cold plates for motor controllers, along with any other components that generate heat, such as the vehicle battery. A test bench is constructed to validate the results of the models used. Preliminary results show that while such models are useful in understanding the fundamental relationships between different variables and the properties of the flow, it is difficult to construct a model that predicts pressure losses reliably using introductory material on thermodynamics and heat transfer.
by Asli Demir.
S.B.
S.B. Massachusetts Institute of Technology, Department of Mechanical Engineering

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Meenen, Jordan N. "MIT Electric Vehicle Team Porsche designing a cooling system for the AC24 electric motor." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59948.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 32-33).
In this thesis I worked on the design and analysis of a cooling system for the electric motor of the MIT Electric Vehicle Team's Porsche 914 Battery Electric Vehicle. The vehicle's Azure Dynamics AC24 motor tended to overheat (up to around 140C), which caused the motor controller to limit the maximum power of the motor. The maximum operating temperature of the motor is listed as 55C. The power limitation prevented the vehicle from achieving its top possible speeds, reaching only 87mph when it should get to over 100mph. To solve this problem, I designed a heat-exchanger system that runs coolant (a mix of water and ethylene glycol) through aluminum passages over the motor surface. The coolant then enters a heat-sink apparatus which consists of winding copper pipes attached to an aluminum array of fins (the heat sink) which convect away the heat into the moving ambient air. I found that with this system, at an ambient temperature of 50C, the maximum motor temperature would be about 72.61C. Even if the air temperature is 32C (89.6F), the maximum motor temperature will only be 54.7C, which is within the listed operating temperature of the motor and meets our goal. The total cost of this system is estimated to be $646.91.
by Jordan N. Meenen.
S.B.

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Hasibuan, Ronaldo Gustav Pangihutan. "Analysis of Cooling System and Its Influence on Magnetic Flux Density in a Motor." Thesis, Uppsala universitet, Institutionen för elektroteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414929.

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Анотація:

After Michael Faraday invented the magnetism theory in 1821, the application of the permanent magnet machine was rapidly developed. The permanent magnet synchronous machine is one of the popular applications of electromagnetic theory, which is implemented in most electric vehicles nowadays. Since then, the trend of renewable electricity increased in order to reduce emission and electric vehicle popularity increased significantly. However, designing a motor that is able to rotate very fast for electric vehicle implementation is tricky. The cooling part is one of the important parts in order to achieve maximum performance of the motor. The power produced by the motor is related to the total induced voltage of the motor, while the magnetic flux is one of the key factors in order to achieve higher induced voltage. On the other hand, the magnetic flux is inversely proportional with the temperature, the magnetic flux density decreases as the temperature increases. In order to design a motor for electrical vehicle, cooling system design is one of the important thing to consider. The motor and cooling system design was built and studied using Comsol software, with the Finite Element Method (FEM) method used to analyse the model. Two cooling systems implemented in COMSOL Multiphysics were the water cooling and air cooling system. The air cooling is represented by a fan located above the motor, the flow of the air analyzed using a turbulence flow physics. The water cooling system designed as a pipe goes around the motor as a helix, the water flow inside the pipe analyzed as a laminar flow. The simulation also involves the heat transfer physics in solid and fluid considering the convection and conduction heat transfer. The result of the simulation showed the temperature distribution in the motor after two cooling systems implemented, the water and air cooling. The cooling system helps to reduce the temperature around the magnet in order to increase the torque of the motor by providing high magnetic flux and induced voltage in the stator winding. The temperature around the magnet decreased significantly after both cooling systems were implemented, in result the performance of the motor remained high. However, the simulated model is modified from the comsol tutorial model which does not really describe a permanent magnet machine.

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Bastl, Ondřej. "Chladicí okruh pro formulový motor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230484.

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Diploma thesis is focused on design engine cooling system for formula vehicle type. The aim is introduce with cooling systems of Formula Student/SAE car and competition rules. Based on the famous engine determine the initial conditions for the cooling system. In addition to design all parts of the cooling system and check affordability.

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Ismail, Basel Ismail A. "The heat transfer and the soot deposition characteristics in diesel engine exhaust gas recirculation system cooling devices /." *McMaster only, 2004.

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Miersch, Sören, Ralph Schubert, Thomas Schuhmann, Uwe Schuffenhauer, Markus Buddenbohm, Markus Beyreuther, Jeannette Kuhn, Mathias Lindner, Bernd Cebulski, and Jakob Jung. "Ceramic-like Composite Systems for Winding Insulation of Electrical Machines." IEEE, 2020. https://htw-dresden.qucosa.de/id/qucosa%3A74384.

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Insulating sheets, impregnants and encapsulation materials commonly used for winding insulation offer low thermal conductivities. This leads to an increased heating of the winding of electrical machines and to the existence of hotspots. The electromagnetical utilization of the machine has to be reduced with respect to the allowed maximum winding temperature. In this paper, the development and experimental investigation of novel polysiloxane composites with ceramic fillers are presented. The materials are tested by means of impregnated and encapsulated samples of a round-wire winding as well as the main insulation of electrical steel sheets and laminated cores. Numerical models are implemented for determining the equivalent thermal conductivity of the winding compound comprising the enameled wire and the impregnant. Based on the example of a permanent-magnet synchronous machine with outer-rotor in modular construction, the potential for increasing the electromagnetical utilization is shown.

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Книги з теми "Cooling system for a traction motor"

Mihaylov, Vyacheslav, Elena Sotnikova, and Nina Kalpina. Eco-friendly air protection systems for motor transport facilities. ru: INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1093106.

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The textbook considers the issue of assessing the heat and humidity state of air in the processes of its processing in various systems, provides requirements for air protection means, taking into account their environmental friendliness, shows ways of energy saving in cooling, heating and year-round air conditioning systems, as well as when protecting the atmosphere from harmful emissions. The way of energy saving with individual thermal protection of the operator by means of local cooling during air treatment in an irrigated intensified nozzle is shown and recommendations for reducing its material consumption are developed. The method and means of reducing the toxicity of emissions of tractor internal combustion engines during its operation in rooms of limited volume by water vapor humidification of the fuel-air mixture are demonstrated. The ways of noise reduction of air protection systems are shown. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for students studying in the specialties "Ground transport and technical means", "Operation of transport and technological machines and complexes", "Power engineering", "Ground transport and technological complexes", "Refrigeration, cryogenic equipment and life support systems", "Technosphere safety", "Ecology and nature management".

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Частини книг з теми "Cooling system for a traction motor"

Zhang, Guoqiang, Gaolin Wang, Nannan Zhao, and Dianguo Xu. "Permanent Magnet Synchronous Motor Traction System—An Overview." In Permanent Magnet Synchronous Motor Drives for Gearless Traction Elevators, 1–9. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9318-2_1.

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Shantarenko, Sergey, Evgeniy Ponomarev, and Alexander Vaganov. "Study of Electromechanical Oscillations in the System of Traction Electric Motor." In VIII International Scientific Siberian Transport Forum, 493–503. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37916-2_48.

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Guo, Hongmei, and Jianjian He. "Modeling Method of Traction Motor Control System of EMU Based on TCN." In Advances in Intelligent Systems and Computing, 1036–40. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53980-1_155.

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Kim, Young-Choon, Moon-Taek Cho, and Ok-Hwan Kim. "Electric Braking Control System to Secure Braking Force in the Wide Speed Range of Traction Motor." In Lecture Notes in Electrical Engineering, 1393–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41674-3_193.

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Kim, Young-Choon, Moon-Taek Cho, and Ok-Hwan Kim. "Electric Braking Control System to Secure Braking Force in the Wide Speed Range of Traction Motor." In Lecture Notes in Electrical Engineering, 559–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41674-3_79.

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Sully, F. K. "The cooling system." In Motor Vehicle Mechanic's Textbook, 122–31. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-434-91884-3.50012-3.

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Samanta, Anik Kumar, Arunava Naha, Devasish Basu, Aurobinda Routray, and Alok Kanti Deb. "Online Condition Monitoring of Traction Motor." In Advances in Civil and Industrial Engineering, 489–523. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0084-1.ch020.

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Squirrel Cage Induction Motors (SCIMs) are major workhorse of Indian Railways. Continuous online condition monitoring of the SCIMs like Traction Motor (TM) are essential to prevent unnecessary stoppage time in case of a complete failure. Before a complete failure, the TMs generally develop incipient or weak faults. Weak faults have minute influence on the motor performance but eventually leads to complete failure of the motor. If these weak faults are identified at the earliest then, a scheduled maintenance can be planned which will prevent any unplanned stoppage. The signals used for SCIM fault detection are motor current, voltage, vibration, temperature, voltage induced in search coil, etc. The most popular fault detection technology is based on Motor Current Signature Analysis (MCSA). MCSA based online and onboard TM condition monitoring system can be very useful for Indian railways to reduce the cost of operation and unplanned delay by shifting from unnecessary scheduled maintenance to condition-based maintenance of TM and other auxiliary SCIMs.

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Starvin, M. S., and A. Sherly Alphonse. "A Conceptual Framework for the Design and Development of Automated Online Condition Monitoring System for Elevators (AOCMSE) Using IoT." In Handbook of Research on Implementation and Deployment of IoT Projects in Smart Cities, 189–207. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-9199-3.ch012.

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The reliability of an elevator system in a smart city is of great importance. This chapter develops a conceptual framework for the design and development of an automated online condition monitoring system for elevators (AOCMSE) using IoT techniques to avoid failures. The elevators are powered by the traction motors. Therefore, by placing vibration sensors at various locations within the traction motor, the vibration data can be acquired and converted to 2D grayscale images. Then, maximum response-based directional texture pattern (MRDTP) can be applied to those images which are an advanced method of feature extraction. The feature vectors can also be reduced in dimension using principal component analysis (PCA) and then given to extreme learning machine (ELM) for the classification of the faults to five categories. Thus, the failure of elevators and the consequences can be prevented by sending this detected fault information to the maintenance team.

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Hart, Andrew. "Neurobiology of injury (compression, traction, laceration) and repair, and grading of injuries." In Oxford Textbook of Plastic and Reconstructive Surgery, edited by Simon Kay, Mikael Wiberg, and Andrew Hart, 243–52. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780199682874.003.0035.

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The functioning nervous system is an integrated system including conscious and subconscious pathways in the brain and spinal cord, the peripheral nerves, and specialized target organs. Efferent and afferent feedback pathways integrate at multiple levels, and there is interplay with mood, life function, growth, and development. The peripheral nervous system provides homeostatic and pain functions, and links the virtual world of our consciousness to the physical body that senses and manipulates the world around us. Injury disconnects the central nervous system from physical reality and induces profound, time-dependent changes at all levels of the system that mostly impede functional restitution after nerve reconstruction. For surgery to optimize outcomes it must be timely, and applied with precision, neurobiological awareness, and aided by adjuvant therapies or technologies that modulate responses within the central nervous system, primary motor and sensory neurons, repair site, distal nerve stump, and target organs.

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Silva, Felipe P., André S. Barbosa, Lucas C. dos Santos, and Rodrigo B. Otto. "Proposal of a Augmented Operator for a Hydroelectric Power Plant." In Advances in Transdisciplinary Engineering. IOS Press, 2019. http://dx.doi.org/10.3233/atde190176.

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There is a trend in the industry in the digitalization of assets for generating large amounts of information and greater control and supervision over the production. With this digitalization, the possibility arises to include new technologies that can facilitate the life of the maintenance team and the operator, such as the concept of augmented operator. In this concept, the operator using mobile devices can access information in real time of the desired equipment, saving time in the acquisition of this information and allowing a greater time to analyze this data. Thus, this work aims to propose an augmented operator system for an hydroelectric power generation industry, as an example there is the possibility of visualizing information of vibration, temperature and rotation of recirculating motor pumps of the cooling system from generation units. Preliminary results indicate a wide possibility of using this concept. In addition to the actual monitoring of the asset in real time, there is the possibility of obtaining the list of spare parts and materials that help in the communication to the purchasing sector and quick replacement of failed components.

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Тези доповідей конференцій з теми "Cooling system for a traction motor"

Ye, Zhen-nan, Wei-dong Luo, Wen-ming Zhang, and Zhi-xiang Feng. "Simulative analysis of traction motor cooling system based on CFD." In 2011 International Conference on Electric Information and Control Engineering (ICEICE). IEEE, 2011. http://dx.doi.org/10.1109/iceice.2011.5777373.

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Nategh, S., D. Lindberg, R. Brammer, A. Boglietti, and O. Aglen. "Review and Trends in Traction Motor Design: Electromagnetic and Cooling System Layouts." In 2018 XIII International Conference on Electrical Machines (ICEM). IEEE, 2018. http://dx.doi.org/10.1109/icelmach.2018.8506817.

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Boglietti, Aldo, Shafigh Nategh, Enrico Carpaneto, Luca Boscaglia, and Claudio Scema. "An Optimization Method for Cooling System Design of Traction Motors." In 2019 IEEE International Electric Machines & Drives Conference (IEMDC). IEEE, 2019. http://dx.doi.org/10.1109/iemdc.2019.8785185.

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Shen, Yanhua, and Chun Jin. "Water Cooling System Analysis of Permanent Magnet Traction Motor of Mining Electric-Drive Dump Truck." In SAE 2014 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2014. http://dx.doi.org/10.4271/2014-01-0662.

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Kekelia, Bidzina, J. Emily Cousineau, Kevin Bennion, Sreekant Narumanchi, and Shajjad Chowdhury. "Comparison of Thermal Management Approaches for Integrated Traction Drives in Electric Vehicles." In ASME 2020 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipack2020-2524.

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Abstract The continuous push to increase power densities of electric vehicle (EV) traction drive systems necessitates combining electric motor and power electronics into one unit. A single, compact traction drive unit with fewer interconnecting components also facilitates fast, automated assembly of electric vehicles, driving production costs down and enabling wider adoption of EVs. There are a number of challenges associated with the integration of power electronics with the electric machine, including thermal management of the combined traction drive system. However, one important benefit of integration from the thermal management system perspective is the potential for using a single fluid loop instead of two separate cooling systems for the electric machine and the power electronics/inverter. This paper reviews several integration approaches and, employing finite element analysis (FEA), compares thermal management solutions for the combined electric machine and power electronics systems. Namely, three different scenarios are modeled: (1) independent component (motor and power electronics) cooling, which is compared to the combined cooling system approach for (2) radially and (3) axially integrated power electronics modules into the motor enclosure. Temperature distributions for selected thermal loads and thermal resistances from the key heat-generating components to the cooling fluid are compared for each scenario.

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Fasquelle, A., D. Saury, S. Harmand, A. Randria, and B. Boualem. "Numerical Study of Fluid Flow in an Enclosed Electrical Motor." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98028.

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Nowadays, design of electrical motors runs up more and more against the problems of heatings during operation. These excessive heatings result from a weak heat dissipation. The improvement of cooling system passes thought the improvement of convective heat transfers within the motors. However, these heat transfers strongly depend on the flow structure. This structure is particularly significant for the enclosed motors. The air is completely enclosed inside the machine and consequently, it is never renewed. Indeed, for this kind of configuration, the flow structure is only regulated by the geometry. It is thus not possible to modify it from the outside as for the open motors. That is why, the numerical study presented below analyzes the flow structure in an enclosed induction motor of railway traction. The sliding mesh method has been carried out in order to keep a significant accuracy on the flow nature. Then, some air spaces in the motor have been proved to be particularly sensitive for this kind of enclosed motor.

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Nafis, Bakhtiyar Mohammad, Ange Iradukunda, and David Huitink. "Drive Schedule Impacts to Thermal Design Requirements and the Associated Reliability Implications in Electric Vehicle Traction Drive Inverters." In ASME 2018 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipack2018-8280.

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Power output to electric traction drive systems varies over a wide range during real-world operation. As a result, the inverters, responsible for converting direct current battery (DC) to alternating current (AC) for electric motor operation, experience temperature changes that are important to consider in thermal design of the whole system, as well as implications for reliability in actual use. Because of the implications of temperature on device & system reliability, it is necessary to design appropriate thermal management systems to control their temperatures to meet product reliability goals. This study utilizes US Environmental Protection Agency standard driving schedules as case studies in how driving characteristics result in power module temperature profiles during operation for various heat removal schemes and design efficiencies. The temperature profiles obtained in this study clearly demonstrate a strong relationship between motor power output and inverter heat sink temperature. Moreover, when integrated with various degrees of road incline, the driving schedules show how road and elevation also impacts the need for various cooling technologies. This information can be integrated into use condition analyses for predicting reliability of the electronic components using reliability models developed from accelerated testing and qualifications to ensure the proper certification envelope is demonstrated for any given vehicle and environment, as well as demonstrate the effectiveness of cooling methods for determination of technical and economic feasibility.

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Bennion, Kevin, and Justin Cousineau. "Sensitivity analysis of traction drive motor cooling." In 2012 IEEE Transportation Electrification Conference and Expo (ITEC). IEEE, 2012. http://dx.doi.org/10.1109/itec.2012.6243512.

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Wanjiku, John, Lan Ge, Zhiyuan Zhang, Kang Chang, Chengtao Wu, and Fuliang Zhan. "Electromagnetic and Direct-cooling Analysis of a Traction Motor." In 2021 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2021. http://dx.doi.org/10.1109/ecce47101.2021.9595429.

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Bourgault, Alexandre J., Pratik Roy, Eshaan Ghosh, and Narayan C. Kar. "A Survey of Different Cooling Methods for Traction Motor Application." In 2019 IEEE Canadian Conference of Electrical and Computer Engineering (CCECE). IEEE, 2019. http://dx.doi.org/10.1109/ccece.2019.8861611.

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Звіти організацій з теми "Cooling system for a traction motor"

Konrad, Charles E. Integrated Cooling System for Induction Motor Traction Drives, CARAT Program Phase Two Final Report. Office of Scientific and Technical Information (OSTI), December 2002. http://dx.doi.org/10.2172/1171520.

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Hayashidsa, Morimasa, Kenji Murooka, Yuya Tanaka, Kenji Fukuda, Xiaohong Liu, and Yushi Kamiya. Evaluation Method for Traction Motor System Under Actual Driving Condition of Urban Buses. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0398.

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